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Analog Devices Inc./Maxim Integrated MAX9052AESA+
- Part No.:
- MAX9052AESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9052AESA+.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:219
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Product details
Overview
MAX9052AESA+ from Analog Devices is a dual micropower comparator with integrated 2.500V precision voltage reference in an 8-pin SO package. It operates from 2.7V to 5.5V, draws only 55µA typical supply current, features rail-to-rail inputs/outputs, ±3mV internal hysteresis, and 400ns propagation delay - ideal for battery-powered precision threshold detection in portable instrumentation.
For engineers reviewing the MAX9052AESA+ datasheet, MAX9052AESA+ pinout, MAX9052AESA+ application, or MAX9052AESA+ equivalent, this page delivers verified circuit role (dual comparator + reference), package mapping (SO-8), pin function validation, A-grade accuracy (±0.4% ref, 6ppm/°C tempco), and real-world design trade-offs versus alternatives.
Technical Context
The MAX9052AESA+ integrates two independent comparators sharing one laser-trimmed series-mode voltage reference. Its input stage supports common-mode voltages from VEE – 0.25V to VCC + 0.25V, with 1.0pA typical input bias current and ±0.5mV typical input offset voltage. The output stage delivers rail-to-rail push-pull operation capable of sinking and sourcing up to 8mA.
Reference regulation is achieved via proprietary curvature-correction circuitry and thin-film resistors, enabling stable 2.500V output with ±0.4% initial accuracy (A grade), 6ppm/°C temperature coefficient, and load regulation of 2–4µV/µA across ±500µA. It remains stable with capacitive loads up to 4.7nF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V single supply - enables direct interface with Li-ion battery systems and 3.3V/5V logic rails. |
| Supply Current (Typ) | 55µA at VCC = 2.7V - extends battery life in always-on sensing nodes beyond 10 years at 10µA average system load. |
| Reference Output | 2.500V ±0.4% (A grade) - eliminates need for external trimming in precision ADC reference or sensor biasing circuits. |
| Propagation Delay | 400ns at 100mV overdrive - supports fast response in overvoltage/undervoltage lockout and motor phase detection. |
| Input Offset Voltage | ±0.5mV (typ), ±7.0mV (max, -40°C to +85°C) - ensures accurate window detection down to ±10mV thresholds. |
| Common-Mode Range | VEE – 0.25V to VCC + 0.25V - allows direct sensing of signals beyond supply rails, e.g., thermocouple outputs or shunt-based current monitoring. |
| Output Drive | Rail-to-rail push-pull, ±8mA - directly drives LEDs, MOSFET gates, or logic inputs without external buffers. |
Pinout & Package
MAX9052AESA+ uses an 8-pin SO (Small Outline) package with standard 150-mil body width and 1.27mm pitch. Pin 1 is marked by a beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Comparator A output | Rail-to-rail push-pull output; sinks/sources up to 8mA; no external pull-up required. |
| 2 (INA+) | Comparator A noninverting input | High-impedance node (1pA bias); accepts signals from VEE – 0.25V to VCC + 0.25V. |
| 3 (INB–) | Comparator B inverting input | Uncommitted input; usable as standalone comparator input or configured for window detection. |
| 4 (VEE) | Negative supply | Ground reference for single-supply operation; must be connected to system GND. |
| 5 (REF) | Precision reference output | 2.500V ±0.4% source/sink up to ±500µA; stable with 0–4.7nF capacitive load. |
| 6 (VCC) | Positive supply | 2.7V–5.5V input; bypassing recommended only if supply impedance >1Ω or noise >10mVpp. |
| 7 (INB+) | Comparator B noninverting input | Independent high-Z input; supports differential or single-ended signal conditioning. |
| 8 (OUTB) | Comparator B output | Identical electrical behavior to OUTA; enables dual-threshold or redundant sensing architectures. |
Key Features
| Feature | Design Value |
|---|---|
| Dual comparator + reference integration | Reduces board area by >60% vs. discrete comparator + reference solutions; eliminates inter-component drift. |
| Internal ±3mV hysteresis | Prevents chatter on slow-moving inputs (e.g., thermistor ramps); eliminates need for external feedback resistors. |
| Ultra-low switching current surge | Minimizes supply rail disturbance during output transitions - critical for mixed-signal systems sharing analog/digital supplies. |
| Laser-trimmed reference | Delivers 6ppm/°C tempco and <130ppm thermal hysteresis - meets industrial-grade stability requirements without calibration. |
| Rail-to-rail input/output | Enables full utilization of supply range for maximum dynamic range in low-voltage battery systems (e.g., 2.7V cutoff). |
Applications
| Battery Protection Circuit | Industrial Sensor Interface |
|---|---|
Use Scenario: Monitoring cell voltage in 2S Li-ion packs to trigger charge/discharge cutoff and overvoltage protection. IC Role / Device Role / Timing Role: Dual comparator compares cell voltage against 2.500V reference to generate precise high/low thresholds; REF provides stable reference for both channels. Use Value: Eliminates external voltage dividers and reference ICs, reducing BOM count by 3 components while maintaining ±10mV trip accuracy over temperature. | Use Scenario: Converting RTD or thermistor resistance changes into digital on/off signals for HVAC control logic. IC Role / Device Role / Timing Role: One comparator detects upper temperature limit using REF as threshold; second monitors lower limit or fault condition. Use Value: 400ns propagation delay enables response within 1ms to rapid thermal transients; rail-to-rail inputs accept conditioned sensor outputs directly. |
| Medical Pulse Oximeter | Programmable Logic Supply Monitor |
Use Scenario: Detecting LED drive current pulses and photodiode signal zero-crossings in wearable SpO₂ sensors. IC Role / Device Role / Timing Role: Dual comparators process synchronized IR/red LED timing and ambient light rejection windows using shared 2.500V REF. Use Value: 55µA quiescent current extends wearable device runtime; internal hysteresis rejects EMI-induced noise on photodiode traces. | Use Scenario: Validating FPGA or microcontroller core supply (e.g., 1.2V, 1.8V) before configuration and during brownout conditions. IC Role / Device Role / Timing Role: Reference voltage sets precise undervoltage lockout (UVLO) threshold; dual outputs enable separate power-good and reset assertion. Use Value: A-grade 0.4% reference accuracy ensures UVLO triggers at exactly 95% nominal voltage - preventing premature resets or unsafe operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator + reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9052BEUA | Same dual comparator + 2.500V reference, but in 8-pin µMAX package (3mm × 3mm); B-grade reference (±1% accuracy, 100ppm/°C tempco). | Suitable for cost-sensitive industrial controls where ±1% reference tolerance is acceptable; smaller footprint but higher thermal resistance. | Select when board space is constrained and reference stability requirements are relaxed to 100ppm/°C. |
| TLV3702IDR | Dual comparator only (no integrated reference); requires external 2.5V reference (e.g., REF3025); 85µA supply current; 360ns propagation delay. | Used where reference flexibility is needed (e.g., adjustable thresholds) or where existing reference ICs are already deployed in BOM. | Select when system already includes a precision reference or when independent reference scaling is required per channel. |
Compared with MAX9052BEUA, the MAX9052AESA+ offers tighter reference accuracy and lower tempco at the cost of larger SO-8 footprint; compared with TLV3702IDR, it reduces component count and layout complexity but fixes reference voltage at 2.500V.
Availability
MAX9052AESA+ is available at Aetrix Electronics and suitable for battery management systems, industrial sensor interfaces, medical wearables, and programmable power monitors requiring stable component supply across extended temperature ranges (-40°C to +85°C).
Supply support for MAX9052AESA+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX90xx family was designed specifically for ultra-low-power, space-constrained applications requiring integrated precision threshold detection - combining micropower comparators and laser-trimmed references in miniature packages.
FAQ
What is the reference voltage accuracy and temperature coefficient of the MAX9052AESA+?
The MAX9052AESA+ features an A-grade 2.500V reference with ±0.4% initial accuracy over temperature and a typical temperature coefficient of 6ppm/°C. This specification is guaranteed across the full operating range of -40°C to +85°C and enables high-precision thresholding without external calibration. The MAX9052AESA+ reference remains stable under capacitive loads up to 4.7nF.
Does the MAX9052AESA+ support rail-to-rail input and output operation?
Yes, the MAX9052AESA+ supports rail-to-rail input operation with a common-mode range extending 0.25V beyond both supply rails (VEE – 0.25V to VCC + 0.25V), and rail-to-rail push-pull output operation capable of sinking and sourcing up to 8mA. This allows direct interfacing with low-voltage sensors and logic families without level-shifting circuitry.
What is the supply current consumption of the MAX9052AESA+ at different supply voltages?
The MAX9052AESA+ consumes 55µA typical supply current at VCC = 2.7V and 60µA typical at VCC = 5V. These values reflect quiescent operation with no output switching; dynamic current increases only marginally (<5µA) even at 100kHz switching frequency due to its optimized output stage design.
Can the MAX9052AESA+ be used in window comparator configurations?
Yes, the MAX9052AESA+ is well-suited for window comparator applications. Its dual independent comparators share a single precision 2.500V reference, allowing one comparator to monitor the upper threshold and the other the lower threshold. Internal ±3mV hysteresis prevents oscillation on slow-moving inputs, and uncommitted INB– and INA– pins support flexible input routing.
What package type and pin count does the MAX9052AESA+ use?
The MAX9052AESA+ uses an 8-pin SO (Small Outline) package with standard 150-mil body width and 1.27mm lead pitch. Pin 1 is identified by a beveled corner or dot. This package is compatible with standard surface-mount assembly processes and provides robust thermal performance for industrial environments.
MAX9052AESA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- with Voltage Reference
- Number of Elements:
- 2
- Output Type:
- CMOS, Push-Pull, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 1pA @ 5V
- Current - Input Bias (Max):
- 8mA
- Current - Output (Typ):
- 85µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 450ns
- Propagation Delay (Max):
- ±3mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
MAX9052AESA+ FAQ
1.How can I place an order for MAX9052AESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9052AESA+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX9052AESA+ reliable?
The price and inventory of MAX9052AESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9052AESA+ is usually 5 days.
3.What payment methods are accepted for MAX9052AESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9052AESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9052AESA+?
MAX9052AESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9052AESA+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX9052AESA+?
For technical support, including MAX9052AESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9052AESA+ requirements.
6.How does Aetrix verify that MAX9052AESA+ is sourced from the original manufacturer or authorized distributors?
All MAX9052AESA+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX9052AESA+ meets industry standards.
7.What is the process for return or replacement of MAX9052AESA+?
All MAX9052AESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9052AESA+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX9052AESA+ part is unused and in its original packaging.
Return procedure for MAX9052AESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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